William T. Wheeler was the founder of the engineering firm Wheeler & Gray, the firm hired as consultants for Disneyland's construction. The firm was such an integral part of Disneyland's creation, that Wheeler & Gray continues to consult on Disney Company's projects, which have included the construction of Walt Disney Worldand the realignment of Disneyland's Monorail tracks. Disney Imagineers Don Edgren & John Wise were originally engineers from Wheeler & Gray.

Originally from Oklahoma, Bill Wheeler's family moved to California in 1922. He received his Civil Engineering degree from the California Institute of Technology and in 1946, Wheeler founded his firm, Wheeler & Gray Consulting Engineers.

For 54 years William T. Wheeler headed the California-based Wheeler & Gray, until his death on October 7, 2000 in Pasadena, California.